Coring Method and Apparatus
AssigneeSaudi Arabian Oil Company
InventorsKhalid A. Zainalabedin, Mustafa A. Al-Huwaider, Shouxiang Mark Ma
Life of this patent
Estimating the term…
Abstract
A system includes a bottom hole assembly and a core sampling tool. The bottom hole assembly includes a housing and a drill bit coupled to the housing. The core sampling tool includes a first compartment positioned within the housing, the first compartment including a motor; a second compartment positioned within the housing and radially spaced apart from the first compartment, the second compartment including a coring bit; and a flexible drilling shaft extending between and coupled to the motor and the coring bit.
Claims20
A system comprising:
- a bottom hole assembly comprising:
- a housing;
- and
- a drill bit coupled to the housing;
- and
- a core sampling tool comprising:
- a first compartment positioned within the housing, the first compartment comprising a motor, wherein the first compartment further comprises a first actuator configured to raise and lower the motor within the first compartment;
- a second compartment positioned within the housing and radially spaced apart from the first compartment, the second compartment comprising a coring bit;
- and
- a flexible drilling shaft extending between and coupled to the motor and the coring bit.
(canceled)
A core sampling tool comprising:
- a first compartment positioned within a housing, the first compartment comprising a motor;
- a second compartment positioned within the housing and radially spaced apart from the first compartment, the second compartment comprising a coring bit configured to cut core samples from a targeted formation, wherein the first compartment further comprises an actuator configured to raise and lower the motor within the first compartment;
- and
- a flexible drilling shaft extending between and coupled to the motor and the coring bit.
Dependencies are inferred from the claim text.